title: Sensitivity improvement of amino acids by N-terminal diisopropyloxyphosphorylation in electrospray ionization mass spectrometry.
mesh_terms: D000596:Amino Acids / Q000032:analysis* / Q000737:chemistry*; D010766:Phosphorylation; D011786:Quality Control; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: D000596:Amino Acids